Sure, Apple will most likely still make far more money per sold iPhone device than competitors will per Android phone, but the trend is clear: as much as I love my iPhone, it will be relegated to a ~10% market share figure within a few quarters.

It took a little longer than "a few quarters", but here we are. Android has revolutionised the smartphone market. I'm not particularly happy about that (both Android and Samsung are far too dominant, which is bad for the market and thus for consumers), but there it is.

Symbian was dated but hardly dead, especially with the dumb to smart transition where better than dumb would work. And they always had incredible hardware.
Like the N9 and N950. They were so good they could have been the target of the transition and the 3rd ecosystem. There was a full opensource foundation.